Business Days Calculator

Count how many working business days fall between two specific dates. This tool automatically excludes weekends, making it perfect for project timelines, shipping estimates, and payroll.

Date Range

Start Date

End Date

Your business days will appear here

Enter your start and end dates to begin

Instant Answer

Business Days Calculator

A business days calculator takes a start date and an end date, calculates the total days, and automatically subtracts all Saturdays and Sundays to give you the exact number of working days between the two dates.

Why It Is Useful

Estimate professional timelines using actual working days instead of raw calendar days.

Skip weekends automatically to avoid manual counting mistakes on a calendar.

Use it for PTO tracking, shipping windows, contract deadlines, and payroll.

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Calendar Days vs. Business Days

When estimating professional timelines, using standard calendar days can lead to missed deadlines and overpromised deliverables. A "business day" typically refers to any official working day, Monday through Friday, excluding weekends and public holidays.

While humans easily grasp the concept of a weekend, manual counting on a calendar is slow and prone to error—especially for timelines spanning several months. Our calculator instantly processes your date range, identifies every Saturday and Sunday, and deducts them from your total timeline to reveal your actual working capacity.

Accounting for Public and Federal Holidays

This calculator automatically removes standard weekends. However, when calculating legal deadlines or shipping windows, you must also account for public holidays.

Because holidays vary by country, state, and corporate policy, they are not automatically removed. To get a perfectly accurate working day count, follow this rule: Subtract one business day from your final result for every public holiday that falls on a weekday within your date range.

Common US Federal Holidays to look out for:

New Year's Day

Memorial Day

Independence Day

Labor Day

Thanksgiving Day

Christmas Day

Working Days Conversion Reference

If you need a quick estimate without exact dates, here is a standard conversion table showing the average number of business days in standard calendar periods.

Calendar Duration	Average Business Days	Average Weekend Days
1 Week (7 days)	5 days	2 days
30-Day Month	~21 - 22 days	8 - 9 days
90-Day Quarter	~64 - 65 days	25 - 26 days
1 Year (365 days)	~260 - 262 days	104 - 105 days

Frequently Asked Questions

To calculate business days, count the total number of calendar days between your start and end dates. Then, subtract all Saturdays and Sundays that fall within that range. Finally, subtract any recognized weekday public holidays.

Our calculator uses inclusive logic by default. If your start date is a Monday and your end date is a Friday of the same week, it will count all 5 days as valid business days.

Generally, no. When a shipping company quotes "3 to 5 business days," they are referring to Monday through Friday, excluding federal holidays. However, some logistics carriers have begun delivering on weekends; always check your specific carrier's weekend delivery policy.

In a standard 365-day non-leap year, there are typically 260 or 261 business days, and 104 or 105 weekend days, depending on which day of the week the year begins.

A business day represents a standard day of operations for standard corporate, legal, and financial institutions. In most Western countries, this is considered Monday through Friday, from 9:00 AM to 5:00 PM local time.